Determine the number of unpaired electrons in the tetrahedral complex ion [Co(NH₃)₄]²⁺. A) 0 B) 1 C) 2 D) 3 E) 4

Name: Determine the number of unpaired electrons in the tetrahedral complex ion [Co(NH 3 ) 4 ] 2+ . A) 0 B) 1 C) 2 D) 3 E) 4
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Question

Quizplus · Accepted Answer

Cobalt in [Co(NH3)4]2+ is in the +2 oxidation state, meaning it has a d7 electron configuration. In a tetrahedral field, the electrons fill the t2 orbitals first, resulting in three unpaired electrons.

Determine the Number of Unpaired Electrons in the Tetrahedral Complex